Study on gas path fault diagnosis method for gas turbine in power plant under transient operating condition

LIANG Mang; YING Yulong; ZHAO Suqiang; ZHONG Lei; GUO Jiahui; XU Bochao; WANG Xinyou

doi:10.19666/j.rlfd.202209196

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Study on gas path fault diagnosis method for gas turbine in power plant under transient operating condition

更新时间：2025-09-28

- Study on gas path fault diagnosis method for gas turbine in power plant under transient operating condition
- Thermal Power Generation Vol. 52, Issue 5, Pages: 29-36(2023)
- 作者机构：
  
  1. 浙江大唐国际绍兴江滨热电有限责任公司
  2. 上海电力大学能源与机械工程学院
  3. 大唐集团科学技术研究总院有限公司华东电力试验研究院汽轮机技术研究所
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202209196
  CLC： TM621
- Published：2023
- 稿件说明：
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LIANG Mang, YING Yulong, ZHAO Suqiang, et al. Study on gas path fault diagnosis method for gas turbine in power plant under transient operating condition[J]. Thermal power generation, 2023, 52(5): 29-36.
DOI：

LIANG Mang, YING Yulong, ZHAO Suqiang, et al. Study on gas path fault diagnosis method for gas turbine in power plant under transient operating condition[J]. Thermal power generation, 2023, 52(5): 29-36. DOI： 10.19666/j.rlfd.202209196.

摘要

为避免失修和过修，提高电厂燃气轮机可靠性和可用性，降低运维成本，确保其安全稳定、绿色高效运行，提出了一种适用于瞬态变工况且包含可变几何压气机的电厂燃气轮机气路故障诊断方法。推导了压气机IGV开度变化对压气机流量特性线和效率特性线的影响数学关系式，建立了以燃气轮机性能分析与气路故障诊断为目的高精度燃气轮机热力模型，并提出了适用于瞬态变工况且包含可变几何的电厂燃气轮机气路故障诊断策略。通过现场实际机组运行测试，验证了所提出的方法具有良好的诊断准确性与实时性，实现了在瞬态变工况下的故障辨识。

Abstract

In order to avoid disrepair and overrepair

improve the reliability and availability of gas turbine

reduce operation and maintenance cost

and ensure its safe

stable

green and efficient operation

a novel approach is proposed for fault diagnosis of gas turbine in power plants under transient operating condition with variable geometry compressor. The mathematical relationship of the influence of the compressor inlet guide vane position on compressor flow and efficiency characteristics is deduced. A high-precision thermodynamic model for the purpose of performance analysis and gas-path fault diagnosis is established. Moreover

the gas path fault diagnosis strategy of power plant gas turbine

which is suitable for transient and variable conditions and includes variable geometry

is proposed. Through actual operation test

it is verified that the proposed method has high diagnostic accuracy and good real-time performance

and the fault identification under transient and variable conditions is realized.

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